Detector for dust



FIG. 1 is a front view of a detector for dust;

FIG. 2 is a rear view thereof;

FIG. 3 is a right-side view therof;

FIG. 4 is a left-side view therof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view therof.

The broken lines depict environmental subject matter only and form no part of the claimed design. 

CLAIM The ornamental design for a detector for dust, as shown and described. 